Metallic yarn and method of treating same to facilitate weaving and for other purposes.



a one WALTER H. UNDERWOOD, OF NEW YORK, N. Y.

METALLIC YARN AND METHOD OF TREATING SAME T0 FAOILITATE WEAVING AND FOR OTHER PURPOSES.

No Drawing.

To all whom it may concern:

Be it known that I, WALTER H. UNDER- woon, a citizen of theUnited States, resid- '-ing at New York, county of New York,

State of New York, have invented new and useful Improvements in Metallic Yarn and described, because of the fact that the edges ofthe fibers are serrated and the weft ,threads cling to the warp threads and prevent beating the weft into position. I have also found that, under certain conditions,

when yarn made from steel wool is em- ;bedded 'in rubber the sulfur in the rubber "attacks the steel and causes a disintegration. In order to avoid this I coat the yarn with a metal which resists the action of sulfur and this metal coating also fills the spaces in the edges of the fibers and facilitates weaving of the yarn.

Where it is desired to merely provide a temporary coating on the yarn for facilitating the weaving thereof, I prefer to use a thick gum-like solution composed of, for example, five pounds of shellac to one gallon of alcohol, although any coating which will fill the minute serrated edges of the fibers, and will remain flexible and will not crack or powder when the fibers are worked will answer the purpose. This solution, after being appliedto the yarn, is wiped off with.

a pad or brush so as to provide a coating for the yarn without impregnating it. The coating dries quickly and, after the yarn has been woven, is removed by the application of heat or by washing the fabric in alcohol or in any other suitable solvent which will not attack the metal. Any gum capable of solution in a highly volatile sol- Specification of Letters Patent.

Patented Dec, 4t, 1911?.

Application filed December 30, 1914. Serial No. 879,764.

vent will be equally efiiective for thus coating the yarn.

In order to prevent the metal from being attacked by the sulfur in rubber, when the yarn or a fabric woven therefrom is embedded in sulfur, I coat'the yarn, the material from which it is made or the fabric, with lead, nickel or any other suitable metal which resists the action of sulfur. metal coating fills the spaces in the edges of the fibers and, therefore, also facilitates weaving.

Having thus described the invention, what is claimed and'desired to be secured by Letters Patent is:

1. The herein described step in the manufacture of a woven product including rough metallic yarn which consists in coating the said yarn before weaving with a material to fill the spaces in the surface of the fibers of which the yarn is made.

2. The herein described method of treating metallic yarn, to prepare it for weaving, which consists in coating the yarn fibers with a flexible material adapted to fill the spaces in the surface of the fibers of which the yarn is made.

3. The herein described method of treating metallic yarn, to prepare it for weaving, which consists in coating the yarn fibers with a material which protects the fibers against corrosion and is adapted to fill the spaces in the surface of the fibers of which the yarn is made.

4. The herein described step in the manufacture of a woven product including rough metallic yarn which consists in coating the saidyarn before weaving with a material to fill the spaces in the surface of the fibers of which the yarn is made and which resists the action of sulfur.

5. The herein described method of treating metallic yarn fibers which consists in coating the fibers with lead.

6. A metallic yarn of the character described coated with a metal which resists the action of sulfur.

7. A metallic yarn of the character deterial against corrosion, which consists in scribed coated with lead. treating the fibers of the metallic yarn with 8. A material made from spun metallic acorrosion resisting material before the mawool coated with a metal which resists the terial is woven.

5 action of sulfur. In testimony whereof I afiix my signature 15 9. A material made from spun metallic in presence of two witnesses. wool coated with lead. WALTER H. UNDERWOOD.

10. The herein described method of pro- Witnesses: I ducing a woven material which includes a J. M. EoKENRoDE,

1 metallic thread or yarn, to protect the ma- MORRIS BIXBY: 

